A3 731 then TK 1848 at Athens
Valletta → Athens → Istanbul
Timetable, Athens time
13:00A3 731 from Valletta at the gate
06:55TK 1848 to Istanbul leaves the gate
17 h 55 apart on the timetable, overnight
TK 1848 leaves 17 h 55 after A3 731 arrives on the timetable: more than half a day, so not a connection we count.